“A missionary,” he writes, “must guard against being cast down and dissatisfied, for this, especially here, is a poison to the body and highly pernicious to the soul, because thereby faith, love, and hope decrease, nay absolutely perish, and when the people remark that such an one is discontented, it is an impediment to the way of his labouring on their souls; from which nevertheless our comfort ought to arise. Whenever I meet with anything disagreeable _I go and catechize for an hour_. This employment sweets even bitter to me. No missionary must give way to complaining. _We must be witnesses for our Lord and not converters merely._ One could wish indeed that, as three thousand souls were converted by Peter’s sermon, a visible abundant blessing might rest on our labours. Meanwhile sowing has its season, and reaping has its season, and, moreover, it might still be a question whether, with such great success, we should hold fast humility of heart. The best way is to labour diligently and then to pray that God would bless our labour.” He had many disappointments, as all who seek the welfare of others are bound to have, but he cherished with thankfulness the souls of those who had been given him. And not only amongst the heathen. As chaplain of the English troops he found a thrilling pleasure in gathering together little groups of soldiers and instructing them in the knowledge of God and His righteousness. He knew that a soldier’s life is such a test of character, that anything less than faithfulness and consistency would never be tolerated in the barrack room. A man who wears the King’s uniform must either be a Christian in deed or a Christian not at all. This was true then, as it is to-day. We get some very interesting glimpses of work in the ranks and of brave good men who fought a good fight in more senses than one in those days long ago. On his seventieth birthday, Schwartz, in marking the date, 8th October, 1796, is full of rejoicing that for so long his life has been spared and that goodness and mercy have indeed followed him thus far. He looks back to the time when the call first came to him and how through a thicket of many trials and difficulties he was brought safely by the providence of Almighty God. We catch his song of praise in the lines of a letter written just about this time. “Ebenezer! Hitherto the Lord hath helped me. To-day I entered upon my seventy-first year. O the richness of His grace, compassions, and forbearance, which I have experienced during seventy years! Praise, honour, and adoration are due to a gracious God, Father, Lord and Holy Ghost for the numerous proofs of His abounding grace. Who am I, poor, wretched sinner, that Thou hast led me till now! O, my God, forsake me not in my old age but let me record, for the encouragement of others, the mercy which has spared, pardoned, and comforted me, and may they be induced to put their trust in Thee!